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Photonic Quantum Computing

High photon number path entanglement in the interference of spontaneously downconverted photon pairs with coherent laser light

arXiv
Authors: Holger F. Hofmann, Takafumi Ono

Year

2007

Paper ID

50443

Status

Preprint

Abstract Read

~2 min

Abstract Words

55

Citations

N/A

Abstract

We show that the quantum interference between downconverted photon pairs and photons from coherent laser light can produce a maximally path entangled N-photon output component with a fidelity greater than 90% for arbitrarily high photon numbers. A simple beam splitter operation can thus transform the 2-photon coherence of down-converted light into an almost optimal N-photon coherence.

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  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
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  • We show that the quantum interference between downconverted photon pairs and photons from coherent laser light can produce a maximally path entangled N-photon output component...

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